My World 3 for Windows TM
One of the most useful features of My World is popup windows.
These are additional windows which can hold resources and tools.
Resources in the popup can be picked up and placed on the main screen.
Resources on the main screen can be picked up and brought to buttons in the popup.
(Examples - look at Chart or City in the example screens)
NB in My World 3, popups are the same file format as screens.
To make a popup, select New from the Screen menu.